Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A28A-A12 found under Brake Shoe Railway Car by Abex Corp. The National Stock Number assigned to this part is 2240003000332, and the Federal Supply Class is 2240 Locomotive And Rail Car Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A28A-A12.